Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method.
Your Body Composition
Enter your details and measurements on the left to get a complete analysis of your body composition.
Your Results
Your Body Fat Percentage is
0%
Category
Body Composition Breakdown
Fat Mass
0 kg
Lean Mass
0 kg
Additional Health Metrics
Body Mass Index (BMI)
0
Basal Metabolic Rate (BMR)
0 kcal
How To Use Body Fat Calculator?
1
Enter Your Details
Provide your age, gender, weight, and height. Choose between Metric or Imperial units.
2
Provide Measurements
Measure your neck and waist (and hips for females) and enter them in the form.
3
Get Analysis
Click calculate to see your body fat percentage, fat mass, lean mass, BMI, and BMR.
Key Features
U.S. Navy Method
Uses the scientifically validated formula for estimating body composition without expensive equipment.
100% Privacy Secure
All calculations are performed in your browser. Your health data is never stored on our servers.
Responsive UI
Access your health metrics anywhere on any device with our mobile-first design.
Frequently Asked Questions
What is the U.S. Navy Method?
It is a formula developed by the Navy Health Research Center that estimates body fat percentage using body measurements.
How accurate is this calculator?
While no formula is as accurate as a DEXA scan, the Navy method is widely considered the most accurate measurement-based estimation.
Why do women need to enter hip measurement?
Women typically carry more fat in the hip region, so the formula requires this measurement for an accurate estimation.